Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:
In a VXLAN-based virtualized campus network, theunderlay networkis responsible for providing basic IP connectivity between VXLAN Tunnel Endpoints (VTEPs). Statement D correctly describes this fundamental role of the underlay. Statement C is also correct, as VXLAN usesMAC-in-UDP encapsulationto overlay Layer 2 networks on top of a traditional IP infrastructure.
When iMaster NCE-Campus is used for automatic orchestration of the underlay routing domain,multiple routing protocols can be supported, depending on the solution version and design. Therefore, statementA is false, because OSPF is not the only supported routing protocol.
Statement B is correct in the context of standard automated deployment: iMaster NCE-Campus supportsOSPF single-area deploymentfor simplified orchestration and maintenance of the underlay network.
According to HCIP Datacom Campus Network architecture principles, the underlay must be stable, simple, and highly available, but it is not limited to a single routing protocol. Thus,option Ais the incorrect statement and the correct answer.
